Potting Soil Guide for the Philippines

What Is Potting Soil?

Potting soil, often sold as potting mix, is a lightweight growing medium engineered specifically for plants grown in pots, grow bags, and containers. Despite the name, most quality potting soils contain little or no actual garden dirt. Instead they are blends of organic matter and drainage material designed to solve the unique problems of container growing: they resist compaction, drain quickly while still holding moisture, stay light enough not to strain roots, and are usually sterilized to keep out weed seeds and soil-borne diseases.

In a garden bed, roots can spread out freely and rainwater drains away through the ground. Inside a pot, roots are trapped in a small volume of soil with only the drainage holes for water to escape. This is why ordinary soil scooped from the yard performs so poorly in containers: it packs down hard, holds too much water, and starves roots of oxygen. Potting soil exists to give container roots the air, drainage, and structure they cannot get from plain ground soil.

For Filipino gardeners working with balconies, patios, and small urban spaces, potting soil is the single most important ingredient for success. Whether you are growing herbs on a condo windowsill or ornamentals on a rooftop, the right potting mix makes the difference between thriving plants and constant struggles with root rot and stunted growth.

Potting Soil vs Garden Soil vs Loam Soil

These three terms are often used interchangeably in Philippine garden shops, but they describe very different products with different jobs. Choosing the wrong one is the most common reason container plants fail. Here is how they compare.

Why You Cannot Just Use Garden Soil in Pots

Garden soil is meant for the open ground, where its clay content helps retain moisture and nutrients across a large area. Pour that same soil into a pot and the clay particles pack together, squeezing out air pockets. Water sits on top or drains too slowly, roots suffocate, and the plant slowly declines. If you have ever had a potted plant that wilts even though the soil looks wet, dense garden soil is usually the culprit.

Where Loam Soil Fits In

Loam is the gold-standard soil texture, a balanced mix of sand, silt, and clay that drains well while holding nutrients. It is excellent as a base for a container mix, but pure loam still compacts inside a pot over time. The trick, covered below, is to amend loam with organic matter and drainage aggregate so it behaves like a true potting mix. For a deeper breakdown, see our full guide on garden soil vs loam soil vs potting mix.

Best Potting Mix Recipes by Plant Type

There is no single perfect potting soil for every plant. Succulents want fast drainage and little moisture; leafy vegetables want rich, moisture-holding soil. Below are proven recipes you can build from ingredients readily available in the Philippines. Percentages are by volume, not weight.

All-Purpose Container Mix

A reliable default for most ornamentals, herbs, and houseplants.

• 40% loam soil
• 30% organic matter (vermicast or compost)
• 20% coco coir
• 10% pumice or perlite

Succulent & Cactus Mix

These plants rot in wet soil, so the recipe leans heavily on drainage.

• 30% loam soil
• 20% coco coir
• 40% pumice, perlite, or coarse washed sand
• 10% vermicast

Leafy Vegetable & Herb Mix

Edibles are heavy feeders and appreciate more moisture retention and nutrients.

• 40% loam soil
• 40% organic matter (vermicast or compost)
• 15% coco coir
• 5% carbonized rice hull or pumice

Aroid & Tropical Houseplant Mix

Monstera, philodendron, and other aroids want a chunky, airy medium that mimics the forest floor.

• 30% coco coir or coco husk chunks
• 25% pumice or perlite
• 25% compost or vermicast
• 20% loam soil

How to Make Your Own Potting Mix

Mixing your own potting soil is cheaper than buying bags of commercial mix and lets you tailor the blend to each plant. It also uses ingredients you can source locally and in bulk. Follow these steps.

1. Gather your ingredients. For a basic all-purpose batch you need loam soil, an organic amendment (vermicast or compost), coco coir, and a drainage aggregate (pumice or perlite). Have a large basin or tarp ready for mixing.
2. Hydrate the coco coir. If using compressed coco coir bricks, soak them in water first until they expand and fluff up. Squeeze out excess water so the coir is damp, not dripping.
3. Measure by volume. Use the same container (a pot or scoop) to measure each ingredient by the percentages in the recipes above. Consistency matters more than precision.
4. Combine thoroughly. Add all ingredients to the basin and mix with your hands or a trowel until the color and texture are uniform, with no clumps of pure loam or pockets of dry coir.
5. Sterilize reused soil (optional). If you are recycling old potting soil, spread it on a tray and heat it in the sun under clear plastic for a few hours, or bake small batches, to kill pests and pathogens before mixing.
6. Test the drainage. Fill a pot, water it, and confirm water flows out the bottom within seconds. If it pools on top, add more pumice or perlite.
7. Store what you don't use. Keep leftover mix in a sealed bag or bin, slightly moist, out of direct sun. It will stay usable for months.

Potting Soil Do's and Don'ts

Keep these quick rules in mind whenever you pot, repot, or refresh a container plant.

Where to Buy Potting Soil in the Philippines

Potting soil and its ingredients are widely available in the Philippines, but quality and pricing vary a lot between sources.

Garden Centers and Plant Shops

Physical garden centers carry bagged potting mix, loam soil, and amendments. This is convenient for small quantities, but prices are higher and stock quality is inconsistent. Always squeeze a handful before buying, good potting mix feels light and springy, not heavy or muddy.

Online and Delivery Suppliers

Ordering online saves you from hauling heavy sacks. Urban Goes Green supplies potting mix, loam soil, and amendments with same-day delivery across Metro Manila, and we offer bulk and reseller pricing for larger projects. You can order online or visit any of our four branches in Sampaloc, Pasig, Novaliches, and North Caloocan.

What About Cost?

Prices vary by blend and quantity. As a rough guide, loam soil starts around P75 per 8kg pack, with amendments like vermicast and pumice priced separately. Mixing your own from bulk ingredients is almost always cheaper than buying premium bagged potting mix. Contact us for current potting mix pricing and bulk quotes.

Frequently Asked Questions